Professional designers learn early to work within constraints: time, budget, materials, price. But the team at the London graphic arts firm hat-trick design has a special knack for a particularly daunting creative challenge: delivering big design on a tiny canvas.

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Today in the U.K., the Royal Mail will release the shop's latest handiwork — two sets of postage stamps commemorating the 50th anniversary of the Royal Shakespeare Company.

Professional designers learn early to work within constraints: time, budget, materials, price. But the team at the London graphic arts firm hat-trick design has a special knack for a particularly daunting creative challenge: delivering big design on a tiny canvas.